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Finding the Fourth Proportional to 101,630.85, 140,248.62 and 61,346.31

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Solution

The fourth proportional to 101,630.85, 140,248.62 and 61,346.31 is: 84,656.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,630.85 : 140,248.62 = 61,346.31 : x
  2. Step 2: Convert to fraction form
    101,630.85/140,248.62 = 61,346.31/x
  3. Step 3: Cross multiply
    101,630.85x = 140,248.62 × 61,346.31
  4. Step 4: Simplify right side
    101,630.85x = 8,603,735,319.59
  5. Step 5: Solve for x
    x = 8,603,735,319.59/101,630.85
  6. Step 6: Final answer
    x = 84,656.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.